The rest of the lap is made from good thick garage sale or warning Dog signsYard-sale-sign.jpg
Look at the lamp you wantyou will need to glue a piece of sign to the back of the bookshelf to get the back plate. a piece on the bottom to be the base. Leave tabs when you cut them to fold and glue them together (super glue will work great). the curved front and sides is another piece, then a top piece that will have a hole in it to hold the lamp. You might want to add a few supports into it for structural integrity, and details like the match book holder, handle, and extra glue on pieces that look like the folded metal edges along the back plate.
Then hot glue the seams just a bit so it looks like a weld. take the Glass and metal off coat it with spray adhesive and let it dry (it will stay tacky) then spray paint your base color. The adhesive will help the paint bind to the plastic. You are going for a galvanized look so paint accordingly. That should help you recreate the look that you are going for.
Hope that helps,
Allen H